Minerals that are found in Rock Gypsum: Selenite is pure gypsum. Selenite is the main mineral in gypsum rock
Rock Gypsum is Chemical
Rock Gypsum forms in: It is formed by the evaporative deposition of gypsum of solution.
Rock gypsum forms by: The evaporation of water that is saturated with the chemical ingredients that are necessary for gypsum formation.
Grain size of Rock Gypsum: Its coarse grain size
Grain shape of Rock Gypsum: White, tan, looks like a crystal mountain
Gypsum is one of the more common minerals in sedimentary environments. It is a major rock forming mineral that produces massive beds, usually from precipitation out of highly saline waters. Since it forms easily from saline water, gypsum can have many inclusions of other minerals and even trapped bubbles of air and water.
Uniform or non-uniform: Non - Uniform
Uses of Rock Gypsum: Most commonly used to make gypsum board, which is lightweight and fire resistant building product, paint fillers, some cements, plaster of paris.
Rock Gypsum- by Kaitlin Fisher
WEBSITES:
**http://www.alientravelguide.com/science/geology/rocks/sediment/Gypsum.htm
http://www.ehow.com/about_6571756_gypsum-rock.html